diff --git a/ruoyi-oa/src/main/java/com/ruoyi/oa/controller/OaProjectScheduleStepController.java b/ruoyi-oa/src/main/java/com/ruoyi/oa/controller/OaProjectScheduleStepController.java
index 9f4f9a0..9cc13ed 100644
--- a/ruoyi-oa/src/main/java/com/ruoyi/oa/controller/OaProjectScheduleStepController.java
+++ b/ruoyi-oa/src/main/java/com/ruoyi/oa/controller/OaProjectScheduleStepController.java
@@ -127,6 +127,15 @@ public class OaProjectScheduleStepController extends BaseController {
         return toAjax(iOaProjectScheduleStepService.batchDelay(batchDelayBo));
     }
 
+    /**
+     * 批量设定步骤结束时间为同一时间
+     */
+    @RepeatSubmit()
+    @PutMapping("/batch-set-end")
+    public R<Void> batchSetEndTime(@RequestBody com.ruoyi.oa.domain.bo.BatchSetEndTimeBo bo) {
+        return toAjax(iOaProjectScheduleStepService.batchSetEndTime(bo));
+    }
+
     /**
      * 删除项目进度步骤跟踪
      *
diff --git a/ruoyi-oa/src/main/java/com/ruoyi/oa/mapper/OaProjectScheduleStepMapper.java b/ruoyi-oa/src/main/java/com/ruoyi/oa/mapper/OaProjectScheduleStepMapper.java
index ef0403e..38e9fca 100644
--- a/ruoyi-oa/src/main/java/com/ruoyi/oa/mapper/OaProjectScheduleStepMapper.java
+++ b/ruoyi-oa/src/main/java/com/ruoyi/oa/mapper/OaProjectScheduleStepMapper.java
@@ -63,4 +63,7 @@ public interface OaProjectScheduleStepMapper extends BaseMapperPlus<OaProjectSch
      * @return 更新记录数
      */
     int batchDelayPlanEnd(@Param("trackIds") List<Long> trackIds, @Param("delayMinutes") Long delayMinutes);
+
+    /** 批量设定 plan_end 为同一个具体时间 */
+    int batchSetPlanEnd(@Param("trackIds") List<Long> trackIds, @Param("newEndTime") java.util.Date newEndTime);
 }
diff --git a/ruoyi-oa/src/main/java/com/ruoyi/oa/service/IOaProjectScheduleStepService.java b/ruoyi-oa/src/main/java/com/ruoyi/oa/service/IOaProjectScheduleStepService.java
index 40a14f0..2c8ecb9 100644
--- a/ruoyi-oa/src/main/java/com/ruoyi/oa/service/IOaProjectScheduleStepService.java
+++ b/ruoyi-oa/src/main/java/com/ruoyi/oa/service/IOaProjectScheduleStepService.java
@@ -89,4 +89,7 @@ public interface IOaProjectScheduleStepService{
      * @return 是否成功
      */
     Boolean batchDelay(com.ruoyi.oa.domain.bo.BatchDelayBo bo);
+
+    /** 批量设定步骤结束时间为同一时间 */
+    Boolean batchSetEndTime(com.ruoyi.oa.domain.bo.BatchSetEndTimeBo bo);
 }
diff --git a/ruoyi-oa/src/main/java/com/ruoyi/oa/service/impl/OaProjectScheduleStepServiceImpl.java b/ruoyi-oa/src/main/java/com/ruoyi/oa/service/impl/OaProjectScheduleStepServiceImpl.java
index 5100633..4d5f233 100644
--- a/ruoyi-oa/src/main/java/com/ruoyi/oa/service/impl/OaProjectScheduleStepServiceImpl.java
+++ b/ruoyi-oa/src/main/java/com/ruoyi/oa/service/impl/OaProjectScheduleStepServiceImpl.java
@@ -1071,5 +1071,24 @@ public class OaProjectScheduleStepServiceImpl implements IOaProjectScheduleStepS
         return updated > 0;
     }
 
+    @Override
+    @Transactional(rollbackFor = Exception.class)
+    public Boolean batchSetEndTime(com.ruoyi.oa.domain.bo.BatchSetEndTimeBo bo) {
+        if (bo.getTrackIds() == null || bo.getTrackIds().isEmpty()) return false;
+        if (bo.getNewEndTime() == null) return false;
 
+        List<OaProjectScheduleStep> steps = baseMapper.selectList(
+            new LambdaQueryWrapper<OaProjectScheduleStep>()
+                .in(OaProjectScheduleStep::getTrackId, bo.getTrackIds())
+        );
+        String completedTrack = steps.stream()
+            .filter(s -> s.getStatus() != null && s.getStatus() == 2)
+            .map(OaProjectScheduleStep::getSecondLevelNode)
+            .collect(Collectors.joining(","));
+        if (!completedTrack.isEmpty()) {
+            throw new RuntimeException("以下步骤已完成，不允许修改：" + completedTrack);
+        }
+        int updated = baseMapper.batchSetPlanEnd(bo.getTrackIds(), bo.getNewEndTime());
+        return updated > 0;
+    }
 }
diff --git a/ruoyi-oa/src/main/resources/mapper/oa/OaProjectScheduleStepMapper.xml b/ruoyi-oa/src/main/resources/mapper/oa/OaProjectScheduleStepMapper.xml
index 5c34a75..7050949 100644
--- a/ruoyi-oa/src/main/resources/mapper/oa/OaProjectScheduleStepMapper.xml
+++ b/ruoyi-oa/src/main/resources/mapper/oa/OaProjectScheduleStepMapper.xml
@@ -321,4 +321,16 @@
           AND status IN (0, 1)
     </update>
 
+    <update id="batchSetPlanEnd">
+        UPDATE oa_project_schedule_step
+        SET plan_end = #{newEndTime}
+        WHERE track_id IN
+        <foreach collection="trackIds" item="id" open="(" separator="," close=")">
+            #{id}
+        </foreach>
+          AND del_flag = '0'
+          AND use_flag = '1'
+          AND status IN (0, 1)
+    </update>
+
 </mapper>
diff --git a/ruoyi-ui/src/api/oa/projectScheduleStep.js b/ruoyi-ui/src/api/oa/projectScheduleStep.js
index e6376da..8f156e1 100644
--- a/ruoyi-ui/src/api/oa/projectScheduleStep.js
+++ b/ruoyi-ui/src/api/oa/projectScheduleStep.js
@@ -76,3 +76,12 @@ export function batchDelayStep (data) {
     data: data
   })
 }
+
+// 批量设定步骤结束时间
+export function batchSetEndTimeStep (data) {
+  return request({
+    url: '/oa/projectScheduleStep/batch-set-end',
+    method: 'put',
+    data: data
+  })
+}
diff --git a/ruoyi-ui/src/layout/components/OverdueGuard.vue b/ruoyi-ui/src/layout/components/OverdueGuard.vue
index 9443d4f..222ebbe 100644
--- a/ruoyi-ui/src/layout/components/OverdueGuard.vue
+++ b/ruoyi-ui/src/layout/components/OverdueGuard.vue
@@ -73,12 +73,14 @@
       </div>
     </el-dialog>
 
-    <!-- ============ 关不掉的浮窗 ============ -->
+    <!-- ============ 浮窗（可最小化但不能关闭） ============ -->
     <transition name="float-slide">
-      <div v-if="floatVisible" class="overdue-float">
+      <div v-if="floatVisible && !floatMinimized" class="overdue-float">
         <div class="float-head">
           <i class="el-icon-warning"></i>
           <span>我的超期 ({{ pending.length }})</span>
+          <i class="el-icon-refresh-right float-action" title="刷新" @click.stop="refresh"></i>
+          <i class="el-icon-minus float-action" title="最小化" @click.stop="floatMinimized = true"></i>
         </div>
         <div class="float-list">
           <div v-for="item in pending" :key="item.business_type + '-' + item.business_id"
@@ -100,6 +102,15 @@
         <div class="float-footer">点标题打开处理窗 · 点"完成"直接标记完成</div>
       </div>
     </transition>
+
+    <!-- 最小化后的气泡 -->
+    <transition name="float-slide">
+      <div v-if="floatVisible && floatMinimized" class="overdue-pill" @click="floatMinimized = false">
+        <i class="el-icon-warning"></i>
+        <span class="num">{{ pending.length }}</span>
+        <span class="lbl">超期</span>
+      </div>
+    </transition>
   </div>
 </template>
 
@@ -112,6 +123,7 @@ export default {
     return {
       visible: false,
       floatVisible: false,
+      floatMinimized: false,
       pending: [],
       totalCount: 0,
       doneCount: 0,
@@ -137,7 +149,12 @@ export default {
       try {
         const res = await listMyOverdue()
         const list = res.data || []
-        if (!list.length) return
+        if (!list.length) {
+          this.pending = []
+          this.visible = false
+          this.floatVisible = false
+          return
+        }
         this.pending = list
         this.totalCount = list.length
         this.doneCount = 0
@@ -146,6 +163,19 @@ export default {
         this.floatVisible = false
       } catch (e) { /* ignore */ }
     },
+    async refresh() {
+      // 手动 / 自动刷新：与服务端对齐，剔除已被别处操作完成的事项
+      try {
+        const res = await listMyOverdue()
+        const list = res.data || []
+        this.pending = list
+        if (!list.length) {
+          this.visible = false
+          this.floatVisible = false
+          this.floatMinimized = false
+        }
+      } catch (e) { /* ignore */ }
+    },
     resetForm() {
       this.form = { action: '', newDeadline: '', reason: '' }
     },
@@ -163,6 +193,7 @@ export default {
       this.resetForm()
       this.visible = true
       this.floatVisible = false
+      this.floatMinimized = false
     },
     async submit() {
       if (!this.current) return
@@ -272,19 +303,11 @@ export default {
       if (this.strikeMap[key]) return
       try {
         await postponeComplete(item.business_type, item.business_id)
-        // 视觉划掉，1 秒后从列表移除
+        // 视觉划掉，1 秒后从列表移除 + 跟服务端对齐
         this.$set(this.strikeMap, key, true)
-        setTimeout(() => {
-          const idx = this.pending.findIndex(x => this.itemKey(x) === key)
-          if (idx >= 0) {
-            this.pending.splice(idx, 1)
-            this.doneCount++
-          }
+        setTimeout(async () => {
           this.$delete(this.strikeMap, key)
-          if (!this.pending.length) {
-            this.visible = false
-            this.floatVisible = false
-          }
+          await this.refresh()
         }, 900)
       } catch (e) {
         this.$modal.msgError('完成失败，请稍后再试')
@@ -330,6 +353,32 @@ export default {
   display: flex; align-items: center; gap: 6px; border-bottom: 1px solid #fde2e2;
 }
 .overdue-float .float-head i { font-size: 18px; }
+.overdue-float .float-head .float-action {
+  font-size: 16px; cursor: pointer; color: #f56c6c;
+  padding: 4px; border-radius: 4px; transition: background .15s;
+}
+.overdue-float .float-head .float-action:first-of-type { margin-left: auto; }
+.overdue-float .float-head .float-action:hover { background: rgba(245,108,108,0.15); }
+
+/* 最小化后的气泡 */
+.overdue-pill {
+  position: fixed; right: 16px; bottom: 16px; z-index: 2000;
+  background: #f56c6c; color: #fff;
+  border-radius: 20px; padding: 8px 14px;
+  display: flex; align-items: center; gap: 6px;
+  cursor: pointer; font-size: 13px; font-weight: 600;
+  box-shadow: 0 4px 16px rgba(245,108,108,.4);
+  animation: overduePillPulse 2.4s ease-in-out infinite;
+  transition: transform .15s;
+}
+.overdue-pill:hover { transform: scale(1.05); }
+.overdue-pill i { font-size: 16px; }
+.overdue-pill .num { font-size: 16px; font-weight: 800; }
+.overdue-pill .lbl { opacity: 0.9; }
+@keyframes overduePillPulse {
+  0%, 100% { box-shadow: 0 4px 16px rgba(245,108,108,.4); }
+  50%      { box-shadow: 0 6px 24px rgba(245,108,108,.7); }
+}
 .overdue-float .float-list { padding: 4px 0; overflow-y: auto; flex: 1; }
 .overdue-float .float-item {
   padding: 8px 14px; cursor: pointer; border-left: 3px solid transparent;
diff --git a/ruoyi-ui/src/views/oa/project/pace/components/StepTable.vue b/ruoyi-ui/src/views/oa/project/pace/components/StepTable.vue
index ca5c464..4e6c839 100644
--- a/ruoyi-ui/src/views/oa/project/pace/components/StepTable.vue
+++ b/ruoyi-ui/src/views/oa/project/pace/components/StepTable.vue
@@ -4,6 +4,8 @@
       <el-button type="text" icon="el-icon-plus" @click="addInnerData">新增</el-button>
       <el-button type="text" icon="el-icon-time" style="color:#e6a23c"
         @click="handleBatchDelay" :disabled="selectedRows.length === 0">批量延期</el-button>
+      <el-button type="text" icon="el-icon-date" style="color:#409EFF"
+        @click="handleBatchSetTime" :disabled="selectedRows.length === 0">批量设定时间</el-button>
       <slot name="extra-buttons"></slot>
     </div>
     <vxe-table size="mini" :height="tableHeight" ref="tableRef" border show-overflow :edit-config="editConfig" :data="innerData"
@@ -183,6 +185,27 @@
       </div>
     </el-dialog>
 
+    <!-- 批量设定时间对话框 -->
+    <el-dialog :visible.sync="dialogBatchSetTimeVisible" title="批量设定时间" append-to-body width="420px">
+      <el-alert type="info" :closable="false" show-icon
+                title="把所选步骤的结束时间统一设为下面这个时间。已完成的步骤会被跳过。"
+                style="margin-bottom: 14px;" />
+      <el-form :model="dialogBatchSetTimeForm" label-width="100px">
+        <el-form-item label="新结束时间" prop="newEndTime">
+          <el-date-picker v-model="dialogBatchSetTimeForm.newEndTime"
+                          type="datetime" value-format="yyyy-MM-dd HH:mm:ss"
+                          placeholder="选择新的结束时间" style="width: 100%;" />
+        </el-form-item>
+        <el-form-item label="影响行数">
+          <span style="color:#606266">{{ selectedRows.length }} 行</span>
+        </el-form-item>
+      </el-form>
+      <div slot="footer">
+        <el-button @click="dialogBatchSetTimeVisible = false">取消</el-button>
+        <el-button type="primary" :loading="buttonLoading" @click="submitBatchSetTime">确认设定</el-button>
+      </div>
+    </el-dialog>
+
     <el-dialog :visible.sync="addDialogVisible" title="新增进度" append-to-body>
       <el-form :model="dialogAddForm" ref="formRef" label-width="120px">
         <el-form-item label="进度类别" prop="tabNode">
@@ -246,7 +269,7 @@
 <script>
 import { addFileOperationRecord } from '@/api/oa/fileOperationRecord';
 import { applyProjectScheduleDelay } from "@/api/oa/projectScheduleDelay";
-import { updateProjectScheduleStep, batchDelayStep } from "@/api/oa/projectScheduleStep";
+import { updateProjectScheduleStep, batchDelayStep, batchSetEndTimeStep } from "@/api/oa/projectScheduleStep";
 import { listSupplier } from "@/api/oa/supplier";
 import { listUser } from "@/api/system/user";
 
@@ -298,6 +321,9 @@ export default {
         delayTo: '',
         applyReason: '',
       },
+      // 批量设定时间对话框
+      dialogBatchSetTimeVisible: false,
+      dialogBatchSetTimeForm: { newEndTime: '' },
       // 批量延期对话框控制
       dialogBatchDelayVisible: false,
       dialogBatchDelayForm: {
@@ -741,6 +767,38 @@ export default {
       };
       this.dialogBatchDelayVisible = true;
     },
+    handleBatchSetTime () {
+      if (this.selectedRows.length === 0) {
+        this.$modal.msgWarning("请先选择要设定时间的步骤");
+        return;
+      }
+      this.dialogBatchSetTimeForm = { newEndTime: '' };
+      this.dialogBatchSetTimeVisible = true;
+    },
+    submitBatchSetTime () {
+      if (!this.dialogBatchSetTimeForm.newEndTime) {
+        this.$modal.msgWarning("请选择新的结束时间");
+        return;
+      }
+      const trackIds = this.selectedRows.map(row => row.trackId).filter(id => id);
+      if (trackIds.length === 0) {
+        this.$modal.msgWarning("请选择有效的步骤");
+        return;
+      }
+      this.buttonLoading = true;
+      batchSetEndTimeStep({
+        trackIds,
+        newEndTime: this.dialogBatchSetTimeForm.newEndTime
+      }).then(() => {
+        this.$modal.msgSuccess("批量设定时间成功");
+        this.dialogBatchSetTimeVisible = false;
+        this.$emit("refresh", this.innerData);
+      }).catch(() => {
+        this.$modal.msgError("批量设定时间失败");
+      }).finally(() => {
+        this.buttonLoading = false;
+      });
+    },
     submitBatchDelay () {
       const trackIds = this.selectedRows.map(row => row.trackId).filter(id => id);
       if (trackIds.length === 0) {